Two can play the lawsuit game, and the National Association of Realtors just dealt itself in. On June 8, NAR filed a civil complaint against Data Distribution Technologies (DDT) requesting that its patent on a “remotely updated database system” be declared invalid and unenforceable by the U.S. District Court. In the past few years, DDT has filed lawsuits against three brokerage firms that employ NAR members and sent demand letters to several more brokerages, MLSs and technology vendors …
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